/////////////////////////////////////////////////////
// name: EBS Tutorial microcontroller task 13
// aurther: Christopher Denning
// verson: 1.0
// description: recording breif history to the serial monitor
////////////////////////////////////////////////////
// definitions
////////////////////////////////////////////////////
int index = 1;
int count = 0;
//
int LedHeating = 6; // D6
int LedCooling = 5; // D5
//
float temperature1;
//
const float BETA = 3950; // should match the Beta Coefficient of the thermistor
// 
void setup() 
{
  Serial.begin(9600);
  //input
  pinMode (A0,  INPUT);
  //output
  pinMode( LedHeating, OUTPUT);
  pinMode( LedCooling, OUTPUT);

  ///////////////////////////////////////////////
  // LED pin test
  ///////////////////////////////////////////////
  digitalWrite(LedHeating, HIGH);
  digitalWrite(LedCooling, HIGH);
  //
  delay(2000);
  //
  digitalWrite(LedHeating, LOW);
  digitalWrite(LedCooling, LOW);
}
 
void loop() 
{
/////////////////////////////////////////////////////
// analoge read sensor A0
////////////////////////////////////////////////////
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  ///////////////////////////////////////////////////
// serial print in celsius
///////////////////////////////////////////////////
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1000);
////////////////////////////////////////////////////
// if statment - temprator range.
////////////////////////////////////////////////////
if (celsius <15)
{
index = 1;
delay(1000);
}
else if (celsius <20) 
{
index = 2;
delay(1000);
}
else if (celsius <25) 
{
index = 3;
delay(1000);
}
else if  (celsius  <30) 
{
index = 4;
delay(1000);
}
else if (celsius >30)
{
index = 5;
delay(1000);
}
/////////////////////////////////////////////
// case statment - serial print temprature conditions
/////////////////////////////////////////////
switch(index)
{
  case 1:
    Serial.println("this is cold");
   
    digitalWrite(LedHeating, HIGH);
    digitalWrite(LedCooling, LOW);
  break;

  case 2:
    Serial.println("this is not too bad");
    digitalWrite(LedHeating, HIGH);
    digitalWrite(LedCooling, LOW);
  break;

  case 3:
    Serial.println("Getting warmer");
    digitalWrite(LedHeating, HIGH);
    digitalWrite(LedCooling, LOW);
  break;

  case 4:
    Serial.println("Nice");
    digitalWrite(LedHeating, LOW);
    digitalWrite(LedCooling, LOW);
  break;

  case 5:
    Serial.println("Getting too hot");
    digitalWrite(LedHeating, LOW);
    digitalWrite(LedCooling, HIGH);
  break;
}



delay(3000);
}